fix: temporary hide markets on testnet

[AGMASO]

General Changes

• The backend has incomplete support for Testnet chains, so a temporary solution is needed until the backend is updated.
• Hid the market route and redirected to the dashboard only on Testnet.

Developer Notes

---

Reviewer Checklist

Please ensure you, as the reviewer(s), have gone through this checklist to ensure that the code changes are ready to ship safely and to help mitigate any downstream issues that may occur.

• End-to-end tests are passing without any errors
• Code changes do not significantly increase the application bundle size
• If there are new 3rd-party packages, they do not introduce potential security threats
• If there are new environment variables being added, they have been added to the .env.example file as well as the pertinant .github/actions/* files
• There are no CI changes, or they have been approved by the DevOps and Engineering team(s)

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
interface	Ready	Preview	Comment	Oct 31, 2025 0:24am

[github-actions]

• Ipfs hash: bafybeiewi6prv4ngjzbzcnmucr46zkiygssy4j7guavyq44sat55olmzg4
• Ipfs preview link: https://bafybeiewi6prv4ngjzbzcnmucr46zkiygssy4j7guavyq44sat55olmzg4.ipfs.cf-ipfs.com/

[github-actions]

📦 Next.js Bundle Analysis for aave-ui

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌